1EDI2001AS_15 Datasheet, PDF (29/135 Pages) Infineon Technologies AG – Single Channel Isolated Driver for Inverter Systems AD Step

2.4.4.5 Protocol Description
EiceDRIVER™ SIL
1EDI2001AS
Functional Description
2.4.4.5.1 Command Catalog
Table 2-3 gives an overview of the command catalog supported by the device. The full description of the
commands and of the corresponding request and answer messages is provided in the following sections.
Table 2-3 SPI Command Catalog
Acronym
Short Description
ENTER_CMODE
Enters into Configuration Mode.
Valid in Mode
OPM0, OPM1
ENTER_VMODE
Enters into Verification Mode.
OPM2
EXIT_CMODE
Leaves Configuration Mode to enter into Configured Mode. OPM2
READ
Reads the register value at the specified address.
All
NOP
Triggers no action in the device (equivalent to a “nop”).
All
WRITEH
Update the most significant byte of the internal write buffer. All
WRITEL
Updates the least significant byte of the internal write buffer, and All (with restrictions)
copies the contents of the complete buffer into the addressed
register. The write buffer is cleared afterwards.
An overview of the commands is given Figure 2-10.
Message
ENTER_CMODE
ENTER_VMODE
EXIT_CMODE
NOP
READ
WRITEH
WRITEL
Command
Data
P
0
0
0
1
1
0
0
0
1
0
0
0
0
0
0
0
0
0
0
1
0
0
0
1
0
1
0
0
0
0
0
0
0
0
0
1
0
0
1
0
0
0
1
0
0
0
0
0
0
0
0
1
0
1
0
0
0
0
0
1
0
0
0
0
0
0
0
0
A4 A3 A2 A1 A0
0
1
0
1
0
1
X
0
1
0
0
0
1
0
D15 D14 D13 D12 D11 D10 D9 D8
X
1
0
1
0
A4 A3 A2 A1 A0 D7 D6 D5 D4 D3 D2
X
Figure 2-10 SPI Commands Overview
2.4.4.5.2 Word Convention
In order to simplify the description of the SPI commands, the following conventions are used (Table 2-4).
Table 2-4 Word Convention
Acronym
Va(REGISTER)
P_B
Value
Value of register REGISTER
Parity Bit
Datasheet
29
Hardware Description
Rev. 3.1, 2015-07-30